434178761 has 2 divisors, whose sum is σ = 434178762. Its totient is φ = 434178760.

The previous prime is 434178649. The next prime is 434178763. The reversal of 434178761 is 167871434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 430811536 + 3367225 = 20756^2 + 1835^2 .

It is a cyclic number.

It is not a de Polignac number, because 434178761 - 2²⁶ = 367069897 is a prime.

It is a super-2 number, since 2×434178761² = 377022393006990242, which contains 22 as substring.

Together with 434178763, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434178763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217089380 + 217089381.

It is an arithmetic number, because the mean of its divisors is an integer number (217089381).

Almost surely, 2^434178761 is an apocalyptic number.

It is an amenable number.

434178761 is a deficient number, since it is larger than the sum of its proper divisors (1).

434178761 is an equidigital number, since it uses as much as digits as its factorization.

434178761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 41.

The square root of 434178761 is about 20836.9566155905. The cubic root of 434178761 is about 757.2213636797.

The spelling of 434178761 in words is "four hundred thirty-four million, one hundred seventy-eight thousand, seven hundred sixty-one".